<!DOCTYPE HTML>
<html>
<head>
  <title>Test for Content Security Policy Frame Ancestors directive</title>
  <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<p id="display"></p>
<div id="content" style="display: none">
</div>
<iframe style="width:100%;height:300px;" id='cspframe'></iframe>
<script class="testbody" type="text/javascript">

// These are test results: -1 means it hasn't run,
// true/false is the pass/fail result.
var framesThatShouldLoad = {
  aa_allow: -1,    /* innermost frame allows a *
  //aa_block: -1,    /* innermost frame denies a */
  ab_allow: -1,    /* innermost frame allows a */
  //ab_block: -1,    /* innermost frame denies a */
  aba_allow: -1,   /* innermost frame allows b,a */
  //aba_block: -1,   /* innermost frame denies b */
  //aba2_block: -1,  /* innermost frame denies a */
  abb_allow: -1,   /* innermost frame allows b,a */
  //abb_block: -1,   /* innermost frame denies b */
  //abb2_block: -1,  /* innermost frame denies a */
};

// we normally expect _6_ violations (6 test cases that cause blocks), but many
// of the cases cause violations due to the // origin of the test harness (same
// as 'a'). When the violation is cross-origin, the URI passed to the observers
// is null (see bug 846978).  This means we can't tell if it's part of the test
// case or if it is the test harness frame (also origin 'a').
// As a result, we'll get an extra violation for the following cases:
//  ab_block    "frame-ancestors 'none'" (outer frame and test harness)
//  aba2_block  "frame-ancestors b" (outer frame and test harness)
//  abb2_block   "frame-ancestors b" (outer frame and test harness)
//
// and while we can detect the test harness check for this one case since
// the violations are not cross-origin and we get the URI:
//  aba2_block  "frame-ancestors b" (outer frame and test harness)
//
// we can't for these other ones:
//  ab_block    "frame-ancestors 'none'" (outer frame and test harness)
//  abb2_block   "frame-ancestors b" (outer frame and test harness)
//
// so that results in 2 extra violation notifications due to the test harness.
// expected = 6, total = 8
//
// Number of tests that pass for this file should be 12 (8 violations 4 loads)
var expectedViolationsLeft = 8;

// This is used to watch the blocked data bounce off CSP and allowed data
// get sent out to the wire.
function examiner() {
  SpecialPowers.addObserver(this, "csp-on-violate-policy", false);
}
examiner.prototype  = {
  observe: function(subject, topic, data) {
    // subject should be an nsURI... though could be null since CSP
    // prohibits cross-origin URI reporting during frame ancestors checks.
    if (subject && !SpecialPowers.can_QI(subject))
      return;

    var asciiSpec = subject;

    try {
      asciiSpec = SpecialPowers.getPrivilegedProps(
                    SpecialPowers.do_QueryInterface(subject, "nsIURI"),
                    "asciiSpec");

      // skip checks on the test harness -- can't do this skipping for
      // cross-origin blocking since the observer doesn't get the URI.  This
      // can cause this test to over-succeed (but only in specific cases).
      if (asciiSpec.includes("test_frameancestors.html")) {
        return;
      }
    } catch (ex) {
      // was not an nsIURI, so it was probably a cross-origin report.
    }


    if (topic === "csp-on-violate-policy") {
      //these were blocked... record that they were blocked
      window.frameBlocked(asciiSpec, data);
    }
  },

  // must eventually call this to remove the listener,
  // or mochitests might get borked.
  remove: function() {
    SpecialPowers.removeObserver(this, "csp-on-violate-policy");
  }
}

// called when a frame is loaded
// -- if it's not enumerated above, it should not load!
var frameLoaded = function(testname, uri) {
  //test already complete.... forget it... remember the first result.
  if (window.framesThatShouldLoad[testname] != -1)
    return;

  if (typeof window.framesThatShouldLoad[testname] === 'undefined') {
    // uh-oh, we're not expecting this frame to load!
    ok(false, testname + ' framed site should not have loaded: ' + uri);
  } else {
    framesThatShouldLoad[testname] = true;
    ok(true, testname + ' framed site when allowed by csp (' + uri + ')');
  }
  checkTestResults();
}

// called when a frame is blocked
// -- we can't determine *which* frame was blocked, but at least we can count them
var frameBlocked = function(uri, policy) {
  ok(true, 'a CSP policy blocked frame from being loaded: ' + policy);
  expectedViolationsLeft--;
  checkTestResults();
}


// Check to see if all the tests have run
var checkTestResults = function() {
  // if any test is incomplete, keep waiting
  for (var v in framesThatShouldLoad)
    if(window.framesThatShouldLoad[v] == -1)
      return;

  if (window.expectedViolationsLeft > 0)
    return;

  // ... otherwise, finish
  window.examiner.remove();
  SimpleTest.finish();
}

window.addEventListener("message", receiveMessage, false);

function receiveMessage(event) {
  if (event.data.call && event.data.call == 'frameLoaded')
    frameLoaded(event.data.testname, event.data.uri);
}

//////////////////////////////////////////////////////////////////////
// set up and go
window.examiner = new examiner();
SimpleTest.waitForExplicitFinish();

// save this for last so that our listeners are registered.
// ... this loads the testbed of good and bad requests.
document.getElementById('cspframe').src = 'file_frameancestors_main.html';

</script>
</pre>
</body>
</html>
